Library /sys$common/syshlp/nclhelp.hlb set, llc2, sap, link, poll_timer  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Default: 1000          Value: 1-60000

    Specifies the time, in milliseconds, the link waits for a response
    with the F bit set.

    The granularity of this timer is 10 milliseconds. Values that are
    not multiples of 10 are rounded up.